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Display Mode
The Display Mode allows the user to select Color & Luminosity, resulting in a bar graph display of
current reading, or Color only, resulting in a pie chart representation of current reading.
Color and luminosity
The Color & Luminosity selection shows a bar graph of the red, green and blue components. The
numeric value in the display boxes above the bar graph show the percent of full scale for each
color component. Indicators on the chart show 20% and 80% of full scale.
Color only
The Color only selection shows a pie chart of the red, green and blue components representing
the proportion of each color component in the reflected signal. The numeric value in the display
boxes above the bar graph show the proportion of each color component in the current reading.
Recognized Colors
The Recognized Colors section shows the current status of the programmed color recognition channels
and coincides with the current state of the discrete outputs. The number of color recognition channels is
dependent on the BFS 30M Color Sensor model. This section will automatically configure to display
the appropriate number of channels. When a channel match occurs, the indicator will change to blue and
the output state box will indicate either high or low as specified by the Match output selection for that
channel. The BFS 30M-USS-L04/L05-OD12 model provides four discrete signals in a binary format
and as such, only one color recognition channel output may be active at a time.
Programming Color Recognition Channels
To program BFS 30M Color Sensor to recognize user samples double-click on the BFS 30M Color
Sensor icon to open the Windows™ Application Program. The following description illustrates a typical
set-up of the Color Recognition Channels. Some of the settings suggested may be adjusted based on the
specific requirements of a particular application.
1.
Acquire samples of all colors that will be programmed into the color recognition channels.
For optimum operation select, a target distance that is best suited for the range of colors
being detected.
When using shiny/glossy targets, set the sensor on a 20° to 25° angle to prevent direct
reflection.
2.
Set sensor averaging to a lower value, 1,2, 4 or 8 for higher speed applications or 16, 32 or 64 for
higher precision applications.
3.
Select the appropriate mode; free run, level or edge triggered depending on the application
requirements.
4.
Set the illumination level to 100%.
5.
Press the Send BFS 30M Color Sensor Settings button to send the settings to the sensor.
6.
To determine which sample provides the highest signal level, place the sample that appears to be
the lightest in the sensor field of view.
7.
Observe the signal level for each color component.
Generally, best results are achieved by setting the sensor-to-target distance to obtain a signal
level near 80% as indicated in the Current Reading frame in the Application window.
Check the remaining samples to verify that the signal levels for each of the color components
are below the full scale, 100%, level.
